15404-63-4Relevant articles and documents
Hydrogenation selectivity of the Bicyclo[4.4.0]decane ring system of valencanes
Sauer, Anne M.,Crowe, William E.,Henderson, Gregg,Laine, Roger A.
, p. 445 - 448 (2010)
To test the selectivity of sterically hindered systems, (+)-nootkatone and derivatives were subjected to a wide variety of hydrogenation methodologies. The steric impact of the C-4 methyl substituent seems to be responsible for the inability of the system to adopt the cis-fused structure. Georg Thieme Verlag Stuttgart New York.
Efficient and general approach to eremophilanes using siloxyalkyne-alkene metathesis
Reddy, D. Srinivasa,Kozmin, Sergey A.
, p. 4860 - 4862 (2007/10/03)
An efficient skeletal reorganization of a terminal alkene armed with an appropriate siloxy alkyne fragment is a pivotal step in our novel and general strategy for the construction of a bicyclic core of eremophilanes with complete diastereocontrol and high synthetic efficiency. Our approach features three significant strategic elements. First, the enyne metathesis precursor is assembled via a highly endo-selective Diels-Alder reaction. Second, installation of the siloxy group at the alkyne terminus enables the regio-selective assembly of the ensuing enone fragment via intramolecular enyne cyclization. Third, the common enone precursor offers the necessary flexibility of accessing several natural products of the eremophilane family.
Sesquiterpenes. 13C and 1H NMR Chemical Shifts of New Thujopsane and Nootkatane Derivatives
Wolff, Peter
, p. 803 - 806 (2007/10/02)
The 13C and 1H NMR spectra of thujopsanone oxime, 7-halo-7-nitrosothujopsanes, nootkat-1-one oxime and 1-chloro-1-nitrosonootkatane are reported. Key Words: 13C NMR 1H NMR Thujopsanes Nootkatanes
